Jarred wants to buy a go-cart for $1,200. His part-time job pays him $160 a week. He has already saved $400. Which inequality represents the minimum number of weeks (w) he needs to work, in order to have enough money to buy the go-cart? A: 400w + 160w >= 1200 B: 400 + 160w = 1200

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Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.